Add option to enable a more readable deck, suggestion by @Turro75 (#495)

* Options menu revamp

* Implement readable card sprites

* redraw characters to fix the original style

* clang format

* remove usage of UNDEFINED (-1) for unsigned values

* typo

* change save fix for something cleaner

* remove dependency to game_variables.h from card.c

* Make the palette look less silly ^^'

* Address @ricfehr3's comments

* clang format

* quick rename

* clang format

---------

Co-authored-by: MathisMartin31 <mathis.martin31@gmail.com>

source/game.c

@@ -289,7 +289,6 @@ GameVariables g_game_vars = {
     .round_end_blind_token = NULL,
 
     .game_speed = DEFAULT_GAME_SPEED,
-    .high_contrast = DEFAULT_HIGH_CONTRAST,
     .music_volume = DEFAULT_MUSIC_VOLUME,
     .sound_volume = DEFAULT_SOUND_VOLUME,
 };
@@ -2599,9 +2598,6 @@ void game_start(void)
     g_game_vars.hands = MAX_HANDS;
     g_game_vars.discards = MAX_DISCARDS;
 
-    // Activate high contrast palette for cards if loaded settings tell us to
-    toggle_high_contrast_cards(g_game_vars.high_contrast);
-
     // Fill the deck with all the cards. Later on this can be replaced with a more dynamic system
     // that allows for different decks and card types.
     for (int suit = 0; suit < NUM_SUITS; suit++)